Soap-dispenser



W. H. ROSE.

SOAP DISPENSER.

APPLICATION FILED DEC. 81 I920- Patnted Oct. 4, 1921.

. UNITED STATES WILLIAM H. ROSE, OF JERSEY CITY, NEW JERSEY SOAP-DISPENSER.

Specification of Letters Patent.

Patented Oct. 4, 1921.

Application flied December 8, 1920. Serial No. 429,118.

To all whom it may concern:

Be it known that I WILLIAM H. Rose, a citizen of the United states, and residinlgI at Jersey City, Hudson county, State of ew Jersey, have invented certain new and useful Improvements in Soap-Dispensers, of which the following is a specification.

The resent invention relates to liquid soap dlspensers and particularl to dispensers adapted to be used in 0 cc buildmgs, hotels, clubs, and all public wash rooms where it is desired to have dispensers which are sanitary, inexpensive, ornamental, and which may be easily refilled. A dispensing device of this character is disclosed in my copending application Serial No. 417,965, filed October 19, 1920, and my present invention constitutes an improvement upon the dispenser disclosed in that ap lication.

princlpal object of this invention is to provide a manually operable pumping device for pumping small quantities of the 5 liquid into the hand of the operator, which 2 device has a novel outlet valve therefor which, while readily permitting the outflow of liquid, prevents any leakage from occurring when the device is not in operation. Another object of the invention is to provide a novel form of flexible pump chamber, and a still further object is to provide a device having a novel combination of parts promoting simplicity,,compactness and ease of manufacture, assembly, and repair. The invention may be embodied in different forms, one of which is disclosed in the following description when taken with the accompanying drawings, in which: 9

Figure 1 is a side view of a liquid soap dispensing device, shown partly in elevation and partly in section; a

Fig. 2 is a section on the line 2-2 of Fig. 1;

Fig. 3 is a, section Fig. 1; and

Fig. 4 is a section through a modified form of outlet valve. I

A metal bracket is indicated at 10 on the drawings, the rear portion of this bracket being adapted to be secured to a vertically disposed board or slab, in the usual manner and its forward end being formed as a casing 11, the longitudinal axis of which is vertically disposed and which is open ended, be-

ing internally threaded at its upper end to on the line 3--3 of receive the externally threaded neck of a glass or metal soap container 12, and the restricted lower end constituting an outlet for the liquid soap, the hand of the operator being placed beneath this lower end to receive the soap discharged. Glam (1 between the lower end of the neck of t e container 12 and the internal annular shoulder 11 of the casing is a disk 13 of soft rubber having a central opening 13 and having integral therewith a rubber bulb 14 which constitutes the pump chamber, thisbulb having a circular aperture 14 in its lower end which constitutes an outlet a erture.

The lower portion of the wall of the bulb 14 lies closely against the wall of the casing 11 and an annular filler piece 15 preferably of wood or rubber, and of triangular cross section, is positioned in the correspondingly shaped space between the disk 13 and the bulb 14. This filler piece prevents the expansion of the upper portion of the flexible rubber bulb when pressure. is exerted on the same by means of a manually operable plunger 16 which is slidably mounted in an aperture 11" inthe casing 11 and disposed diametrically opposite the "bracket 10.

A non-return valve 17 is ositioned in the inlet aperture 13' of the flexible pump chamber, this valve being preferably of rubber and headed at both ends as illustrated, the

Extending through the outlet aperture 14' of the pump chamber is a tubular member 18 preferably of soft rubber, this rubber fittin tightly against the edges of the aperture 14 and normally sealing the aperture and preventin the outflow of liguid. This member is hea ed at its upper en this head 18 having a series of apertures 18" through which. the liquid soap may freely pass at all times and the lower end of the tube has a plug of wood or similar material inserted therein to maintain the tube in proper cylindrical shape. tube may be solid as illustrated at 18, Fig. A. It is in both instances fabricated of rubber so as to be flexible.

In the operation of the device one hand of The member 18 while preferably a' the operator is placed beneath the open lower end of the casing and pressure is exerted with the thumb of the hand or a fin r on the plunger 16 which forces the wal of the flexible pump chamber inward, raising and closing the valve 17, and subjecting the fluid in the pump chamber to pressure which is relieved by the escape of fluid through the outlet aperture 14', the opening for the escape of fluid being formed as a result of the contraction of the tube 18, or as a result of a sli ht expansion of the aperture 14 and a slight contraction of the valve 18. When the pressure in the pump chamber is relieved the its former shape, as will the self-closing aperture 14' if deformed, and the joint between the valve and its seat is tight so that no leakage of soap may occur. This is an important feature of the invention, it having been found that soap has a tendency to leak wherever the slightest space or crack occurs, soap in fact being able to escape through apertures through which water cannot pass.

The several parts of the pumping device are of the simplest construction, easily assembled together, and may be made at small expense so that the cost of repairing or relacement of such devices is a minimum.

arious changes may be made in the design and arrangement of the component parts of the invention which is not limited to the exact form illustrated and described.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. The combination with a fluid soap tank of a discharge device comprising a flexible pump chamber having an inlet provided with a non-return valve and an outlet, and a valve 18 immediately resumes outlet, and a flexible flexible member extendin through said outlet and constitutin a va ve therefor. I

2. The combination with a fluid soap tank of a discharge device comprising a pump chamber having an inlet rovided with a non-returnvalve and an out et, and a flexible member constituting a valve for said outlet.

3. The combination with a fluid soa tank of a dischar device comprising a exible pump chamgr having an inlet provided with a non-return valve and a self-closing outlet, and a cylindrical flexible member extending through said outlet and constituting a valve therefor.

4. The combination with a fluid soap tank of a discharge device comprising a flexible pump chamber having an inlet provided with a non-return valve and a self-closing tube extending through gaid outlet and constituting a valve there- 5. The combination with a fluid soap tank of a discha device comprising a flexible pump cham er having an inlet provided with a non-return valve and an outlet, and a cylindrical flexible member extending through said outlet and constituting a valve therefor, said member having an enlarged head portion within the pump chamber, for the purpose set forth.

6. The combination with a fluid Soap'tank of a discharge device comprising a rubber bulb having an inlet provided with a nonreturn valve and a self-closing outleft, a, member extending through said outlet and constituting a valve therefor, and means for applying pressure to the wall of the bulb to eject fluid through said outlet.

In testimony whereof I aflix my signature.

WILLIAM H. ROSE. 

